12905925 has 12 divisors (see below), whose sum is σ = 21337920. Its totient is φ = 6883120.

The previous prime is 12905923. The next prime is 12905969. The reversal of 12905925 is 52950921.

It is not a de Polignac number, because 12905925 - 2¹ = 12905923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12905923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85965 + ... + 86114.

It is an arithmetic number, because the mean of its divisors is an integer number (1778160).

Almost surely, 2^12905925 is an apocalyptic number.

12905925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12905925 is a deficient number, since it is larger than the sum of its proper divisors (8431995).

12905925 is a wasteful number, since it uses less digits than its factorization.

12905925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172092 (or 172087 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 12905925 is about 3592.4817327302. The cubic root of 12905925 is about 234.5649109650.

The spelling of 12905925 in words is "twelve million, nine hundred five thousand, nine hundred twenty-five".